Either print both left and right or mirror print one of them - Designed for two to fit perfectly on the print bed in mirror so it's a quick print.

You'll need to get the filament from the front to the back if you want it neat, for this i've used 6mm tubing round to the back and up into the top back hole

For my CP2s that only print PLA I just load directly into the direct drive extruders with the top off.